Universal boring-machine.



H. H. HILL.

UNIVERSAL BORING MACHINE.

APPLICATIQN FILED SEPT. 22,*1917.

Patented Nov, 12, 1918..

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r -II INI. IIIII IIHMIJH IIIIIII I I E11/we ntoz @www im ttoznegb 4@XN/immo R. H. HILL.

UNIVERSAL BORING MACHINE.

APPLICATION HLED sPT.22. |917.

Patented Nov. 12, 1918.

8 SHEETS-SHEET 2.

@LVI/Immo R. H. HILL.

UNIVERSAL BORING MACHIIN'E. APPucATloN man sEPLzz, Ix I.

Patented Nov. 12, 1918.

(g1/'we n tom R. H. HII I UNIVERSAL BORING MACHINE.'

APPLIcATloN FILED SEPT. 22, |917.

Patent-ed Nov. 12, 1918 8 SHEETS-SHEEI 4.

f1 not ne ld R. H. HILL. UNIVERSAL BORING MACHINE.

APPLICATION FILED SEPT- 22| lgl/I .j 1,284,894. Patented Nov. 12, 1918.

8 SHEETS-SHEET 5.

Snug IM @NWN-JM @wi/maw R. H. HILL.

UNIVERSAL BORING MACHINE. 'APPLlcATloN FILED SEPT. 22. |917.

Patented Nov. 12, 1918 8 SHEETS-SHEET 6.

R. H. HILL.

UNIVERSAL BORING MACHINE. l

APPLICATION FILED SEPT. 22, ISI]A Patented Nov. 12, 1 918 8 SHEETS-SHEEIAIMME W f f /y//y f lIIIIIIIIIIIIII ll |34 IIIIIII a ISO IQa IImrDn-51402 nto@ y R. HLHILL. UNIVERSAL BORING MACHINE.

APPLICATION FILED SEPT. 22, I9I 7.

Patented Nov. 12, 1918.

nw u Y i 6 m H i. I m ,JW 2. I m u au a 9 I 7 98 f O O 0 22 2, M 1 a 5VT 1 @W69 W E 6 a, i aafm W .P A mw e l. I 1 a 2,1% 2 m um E a @n .1 Aful wm o 1 @www 7 28 A m ,I 3 Y IVM@ TW 1,1 -I I, a 4 e a E l l L 5 14m:n tot attente y) RAYMOND H. HILL, or DETROIT, ,-M'IGHIGA'N.

UNIVERSAL BORING-MACHINE.

To. all whom t may concern:

Be. it known that I, RAYMOND H. HILL, a citizen of the United States ofAmerica, residing at. Detroit, in the county otl layne and State ofMichigan, have invented certain new and useful Improvements in UniversalBoring-Machines, ot which the following is a specification, referencebeing had therein to the accompanying drawings.

This invention relates to a boring machine, and has special reference tothatl type ot' machine which permits of various kinds ot' drills, bits,cutters and other tools being used t'or performing various operationsupon a piece ot' work correctly positioned in or on the machine, andsuch machine possesses the following characteristics:

First, there is a novel main frame consisting of parts that may beeasily and quickly assembled and this main frame conceals the greaterpart of a main operating mechanism including a change speed gearmechanism, which permits of the machine being operated at. variousspeeds. certain speeds being more essential than others for certainoperations on a piece of work.

Second. there is a novel horizontal spindle and arbor rest with anoperating mechanism t'or the horizontal spindle by which reciprocableand rotary movements may be imparted to the spindle. with a controllingmechanism t'or each movement so that said movement may be reversed andin conscquence ot' which the tool may be shifted to and t'rom a piece otwork.

Third. the machine includes a universal head having vertical and angularadjustment. the vertical adjustment being Lby" power and the angularadjustment by hand. rl'he universal head supports a spindle and aportion ot its operating mechanism. said mechanism including means t'orimparting a rta-iprocable and rotary movementto the spindle. also meanstor reversing either movement ot the spindle.

Fourth. there is a novel universal table capable ot vertical` rotary andlat-eral adjustment. the vertical adjustment being b v power or hand.the lateral adjustment b v power or hand. and the rotary adjustment byhand alone. Such a table permits of a piece ot' work held thereby beingcorrectly positioned relatively to the horizontal and vertical spindles.both of which may operate in synchronism should it be desired toSpecification of Letters Patent.

Patented'N ov. 12. 1918.

Application filed September 22, 1917. Serial No. 192,660.

perform two operations at one time upon a piece of work on the table.

The machine, besides possessing the above characteristics also includespositive and reliable means, accessible to a machinistor other artisanfor controlling the various operations of the machine.` which as awhole, has sutiicient strength and rigidity to withstand the stressesand strains to which it may be subjected when operating upon a piece ot'work. The machine includes various novel features which will hereinafterappear, and t'or convenience ot' describing my invention, the principalelements namely: main frame: main operating mechanism; universal head;vertical spindle and its operating mechanism; horizontal spindle and itsoperating mechanism: uni- :versal table: will be hereinafter separatelyand specifically described in detail. together with the novel ar'angement and objects accomplished from such a combination of elements.

Reference will now be had to the drawings, wherein- Figure l is a sideelevation of a. boring machine in accordance with in v invention: Fig. 2is a front elevation ot' the same;

Fig. 3 is a vertical sectional view of the universal head. its verticalspindle. and the operating mechanism thereof; t

Fig. -l is a horizontal sectional view taken on the line lil-IV of Fig.'3:'

Fig. 5 is a similar view taken 0n the line V ot Fig. 3: Figli is asimilar view taken on the line YI-V of Fig. 3:

' Fig. 'I is an enlarged side elevation of a portion oth'etiperajingtnehanism of th@ machine:

Fig. 8 is a horizontal sectional view taken on the line vllt- VIH otFig; 7:

Fig. 9 is a similar view taken on the line IX-IX ot Fig. 7:

Fig. l() is a vertical cross sectional view taken on the lineXX of Fig.8:

Fig. 11 is a vertical longitudinal sectional view ot' the universaltable: and

Fig. 12 is a horizontal sectional view taken on the line XH-XH of Fig.11. and partly broken away.

ln describing my invention bv aid ot the views above referred to, Idesire to point out that the same are intended as merely' illustrativeof an example b v which in v in- By referring to a vertical spindle, de-

tning other elements as to their normal -positions, and using terms ashorizontal, front and rear, etc., such are employed for the convenienceof describing the invention, as a great many of the machine ele* mentsnecessarily change their position.-

Main frame, (Figs. 1 and 2.)

The main frame comprises a base 1 and on the base is a pedestal sectioncomprising side walls 2 and 3, a front wall 4, a rear wall 5, said wallsbeing connected by a top wall 6. The front wall +L has a verticalopening with shears T at the sides thereof and connecting the side walls2 and 3 is an angular frameA 8. The top wall 6 affords a seat for a topsection having side walls 9 and 10, a front wall 11, a top wall 12 andan inclined rear wall 13. The walls 9 and 10 are flush with the walls 2and 3 of the pedestal section, and the front wall 11 is flush with thefront wall et of the pedestal section. The front wall 11 has a vert-icalopening with shears 1l at the sides thereof. and the top section may besuitably connected to the pedestal section so as to provide a` rigid anddurable structure.

Main operating mechanism, (Figs. 1. 7,

and 9.-)

motor or suitable source of poweix/llheYJ haftslalso forms part.. YOf--a'change powe "5G/speed' gear mechanism of a conventional form,generallyv designated 1h and best shown in dotted lines in Fig. 1. asincluding a counter-shaft and shiftable speed gears by which variablespeed may be imparted to a beveled gear wheel 19 from the power shaft16. rl`he shifting of thc speed gears is accomplished through the mediumof rock shafts 2() provided with cranks 21 at the, outer side of thewall 2. said cranks being set for desired speed.

.lournaled in the horizontal portion of the angle frame H is the lowerend of a vertical shaft 22 extending upwardly in the top section of themachine and having its upper end journaled in the top wall 12 of saidsection. The lower end of the main vertical shaft 22 has a beveled gearwheel 23 meshing with the 'beveled gear wheel 19 and at the u-pper endof the main vertical shaft is a horizontal gear wheel 2-1 meshing with asimilar gear wheel 25 on an auxiliary vertical shaft 26. The auxiliaryvertical shaft 26 has the upper end thereof. journaled in the top wall12 of the top section and the lower end thereof journaled in a bearing2T, carried b v a U-shaped frame 28 mounted on the top wall 6 of thepedestal section of theI machlne.

The vertical shafts 22 and 26 constitute the main shafts of the' machineand on the auxiliaryshaft 26 is a worm 29 and loose horizontal beveledgear wheels 30 and 31. blida-bly keyed on the shaft 26, between thebeveled gear wheels 3() and 31, and adapted for rotation with saidshaft, is a clutch member 32 that may be shifted into interlockedengagement with face of either of the beveled gear wheels 36 or 31 toestablish rotative continuity between the auxiliary shaft 26 and eithergearwheel. The clutch member 32 is shifted.- through the mediuml of acrank or fork 33 on a rock shaft 34 journaled in the frame 28 and sidewall 9 l of the machine, said rock shaft Ihaving the outer end thereofprovided with a crank 35 that may be set to hold the clutch member 32 ina shifted position.

The beveled gear wheels 3() and 31 permit of power being obtained fromthe auxiliary vertical shaft 26 for operating .a horizontal spindle.which will be vhereinafter referred to, and the clutch member 32constitutes means for imparting a desired rota-tory movement to thehorizontal spindle.

(faire/'sal head, Figs. 1, to 6 inclusive.)

The shears 14: of the front wall 11 of the top section of the machineform a dovetailed connection with a plate 36 that may be raised andlowered on the shears relatively to the top section of the machine'. The plate 36 has a bracket 3T extending into the rounding the auxiliaryvertical shaft 26. Depending from the bracket 3T is a hanger 38 aml saidbracket has a nutv portion 3) in engagementwith a screw shaft l0 saidshaft having the fupper end thereof journaled in the top plate 12 andthe lower end thereof journaled in a bearing l1 carried by the frame 23.(h1 the lower eml of the screw shaft l() is a beveled gear wheel 42meshing with a similar wheel 43, on a shaft ll journaled in the frame 2Hand the side wall 9. said shaft having the outer end thereof'brovidedwith a hand wheel 45 so that a rotary movement .maybe imparted to thescrew shaft l() to raise and lower the bracket 3T and consequently theplate 36 on the front wall 11 of the machine. The elements 39 to 45inclusive constitute means for manually raising and lowering theuniversal head. Rotatable on the plate 36 is a circular face plate 46 ofa housing 47, said face plate having curved tongues '-18 extending intogrooves provided therefor in the plate 36. The face plate 46 also hassegment shaped slots 49 and extending through said slots into the plate36 are screw bolts 50. or other fastening means adapted forfixin theface plate 46 relative to the plate36. p y releasing the screw bolts 50and partiallyv rotating the face plate 46, the housing '47 may be set inangular relation to the top section of the machine.

0n the housing 47 is a cap 51 and on the cap is a bearing 52 both ofwhich are essential in connection with the vertical spindle and itsoperating mechanism, Which'will be considered in the following caption.l

Vertical spindle (mtl vits operating mccz-- lmiami., 1 to 6 inclusive.)

ln the outer end of the housing 4,7 is a sleeve portion 53 for endthrust bearings 54 of the main bearing 55`in which a vertical spindle 56is journaled, such spindle having the lower end thereof adapted toreceive or hold a suitable tool. The main bearing is rotatable with thespindle 56 and rotatable with said spindle and its bearing is a largehorizontal gear wheel 57 having'a key or spline 58 extendingintoalongitudinal groove 59 in the spindle 56. It is therefore possible forthe spindle 56 to be raised and lowered during a rotative movementthereof.

yThe horizontal gear wheel 57 is in the lower part of the cap 51 andmeshes with a similar wheel 6() mounted on a shaft 61. journaled in thecap 51 and the upper wall of the housing 47. The inner end of the shaft61 has a beveled gear wheel 62 constantly in mesh'with beveled gearwheels 63 and 64 loose on a shaft `65. journaled in the hanger 38 andthe sleeve portion 53 of the housing 47. A clutch member 66 is slidablvkeyed on the shaft 65. between the beveled gear wheels 63 and 64, forinterlocking engagement with either, so that either gear wheel may befixed relative to the'shaft 65 to impart movement to the spindle 56 in adesired rotary direction.

To shift the clutch member 66. a fork or crank 67 is employed` said forkor crank being carried by a rock shaft 68. journaled in a bearing 69.mounted within the housing 47. 'lhe rock shaft 68 extends out of thehousing 47 and is provided with a crank 70 that may be set to hold theclutch member 66 in engagement with a desired beveled gear wheel.

The end of the shaft 65 within the top section of the machine has abeveled gear wheel 71 meshing with a horizontally disposed beveled gearwheel 7&2 slidably keyed 'tical' spindle 56.

upon the auxiliary vertical shaft 26 and adapted for rotation with saidshaft, even while the housing 47 is being raised'. and lowered.

Considering the mechanism for raising and lowering the vertical spindle56, said spindle has the upper end thereof reduced and provided'with aloose rack sleeve 73, said sleeve extending through the bearing 52 andheld against rotation. without interfering with the spindle 56. byhaving the rack 74 thereof slidable in a vertical slot 75 of the bearingTherack 74 meshes with a pinion 76 mounted upon an anguarly disposedshaft 77 journaled in the bearing 52. The bearing overhangs the side ofthe cap 51 and the end of the shaft 77 has a beveled gear wheel 78meshing with the beveled gear wheel 79 on the upper end of a shaft 80that extends downwardly at the outer side of the cap 51 into a sideextension 81 of the housing 47. On the lower end of the shaft 80 is abeveled-gear wheel 82 meshing with a similar gear wheel 83 on the innerend of a transverse shaft 84 journaled in the lower part of thehousing-47. 0n the outer end of the shaft 84 isa hand wheel 85 whichpermitsl of said shaft being manually rotated and consequently theoperator of the machine ymay manually aise and lower the ver- Power maybe employed for raising and lowering the vertical spindle 56. and tothis end. the transverse shaft 84 is provided with two loose beveledgear wheels 86 and 87 constantly in mesh with a beveled gear wheel 88 onthe inner end of a shaft 89 journaled in the bearing 69. The bearing 69extends into a slot or opening 9() in the plate 36. and the end of theshaft 89 has a small gear wheel 91 within the top section of themachinez.

Slidably keyed upon the 'shaft 84 for 1'0- tat'ive continuity therewithis a clutch member 92 and said member is adapted to be shifted intointerlocking engagement with cithcl ot' the beveled gear wheels 86 or87. Engaging the clutch member 92 is a fork 93 on the inner end of arock shaft 94 `iournaled in the sleeve portion 53 of the housing 47.said rock shaft having the outer end thereof provided with a crank 95that may beset to hold the clutch member 92 in cngagement with either ofthe beveled gear wheels 86 and S7. The clutch member and its adjustingmechanism constitutes meansA for controlling the direction ofreciprocation-of the vertical spindle 56 by power supplied to the gearwheel 91.

The plate 36 has the inner side thereof provided with a sleeve 96loosely surrounding the shaft 65 and rtatable on the sleeve 96 is thehub portion 97 of a large gear wheel 9S and a worm gear 99, the formermeshing with the gear wheel 91. The worm gear 99 meshes with a wormportion 100 of a vertical shaft 101 having the upper end thereof jour-ieled gear wheel 103 meshing with a similark wheel 104 on a longitudinalshaft 105 journaled in the angle bearing 102 and a similar angle bearing100 carried b v the frame Now. by reference to Fig. H. it will beobserved that the longitudinal shaft 105 has a large beveled gear wheel107. adjacent the bearing 106. and saidfbeveled gear wheel meshes with asmall beveled gear wheel 10H on a transverse variable speed shaft 100.journaled in the side of the frame 28 and the bearing 110a carried bysaid frame. The variable speed'shaft 109 is provided with a plurality ofspeed gears 110 and adapted to mesh with either o these gears is a gear111 carried by a gear shift member 112 having a sleeve portion 113slidably keyed upon a shaft 114. liournaled in a portion of the angle.bearing 100. This is best shown in Fig. S where it will be observed thatthe sleeve portion 113 of the gear shift member 112 extends through thewall -0 of the top section and into a casing 115` carried by said wall.The casing 115 has an angularly disposed slot 110 with one of the wallsthereof provided with spaced and stepped sockets 11T adapted to receivea crank 118 on the end of the sleeve portion 113. By shifting the crank118. the sleeve portion 111mav be rocked or shifted longitudinally ofthe sha ft 114 and in this manner the gear 111 may be placed in meshwith either of the speed gears 110. it may be locked relative to thecasing 115 to prevent accidental shifting 0f the gear shift member 112.ln'the gear shift member 112 is a 'gear 120 slidably keyed upon .theshaft 114 and meshing with the gear 111 so that niovement may beimparted to one of the speed gears 110 from the shaft 114.

(')n the shaft 114. is a worm gear 121 constantly in mesh with the wormv20 on the auxiliary vertical shaft 20. 1t is now apparent that power istransmitted from the auxiliary vertical shaft 20 to the shaft 114. shaft109. shaft 105. shaft 101. through the, worm gear 00 and a train ot'gears to the shaft. S0. by shaft 84 and shaft S0 to the pinion and thenby virtue of the rack sleeve T3. the'vertical spindle 50 may be raisedand lowered by power: the direction of movement may be controlled .bythe clutch member 02 and the speed of such movement controlled by thevariable speed mechanism including the gear shift member 1 12.

Horizontal .57Min/ZZP am] 'its ope/rating mechanism. (Flgs. 1 and 2. 7.t? and 9.)

`The principal parts of the horizontal The crank 11S has a device 11S)so that chine in a bearing 123 carried by the bottom ot' the frame 2S.The inner end of the spindle 122 has a gear wheel 124 for imparting arotary movement to said spindle .but not interfering with a reciprocablemovement of the spindle through the gear wheel. Meshing with'the gearwheel 124 is a gear wheel 125 mounted on a shaft 120 journaled insuitable bearings provided therefor on the frame 28. The shaft 126 has abeveled gear wheel 12T constantly in mesh with the beveled gear wheelsil() and 31 of the auxiliary vertical shaft 20. 1t is from this shaftthat a rotary movement is imparted to the spindle 122 and the directionof rotation of Said spindle is controlled by the clutch niember The endof the spindle 122 extends through the wall 5 of the machine and abearing 128 carried by said wall. ()n the end of the spindle is a racksleeve 12S). similar to the rack sleeve T21 of the vertical spindle 50.and the rack sleeve 1211 is adapted to be shifted through the medium ofa pinion actuated from a shaft 1210 extending longitudinally of themachine. The shaft 130 extends into a baring 131 depending fromthebearing 123 or the frame 2S and said shaft has a beveled gear wheel112 meshing with a similar wheel 1213 on a transverse shaft 1214journaled in the bearing 181. the wall 2 of the pedestal section. and abearing llof the frame 2S. The outer end of the shafty 134 has a handwheel 131' and through the medium of the mechanism just described. thehorizontal spindle 122 may be manually recii'irocated. ()n the shaft1:14 are loose beveled gear wheels 13T and 13S adapted to be fixedrelatively to the shaft' 134 for rotation therewith. by a clutch member139 slidably keyed on the shaft 1234 between the gear wheels 13T and13S. Engaging the clutch member 130 is a crank or fork 140 carried by avertically disposed rock shaft 141 supported from the bottom of thebearing 122-1. The rock shaft 141 has a Crank 142 and pivot/allyconnected to said crank is a lever 1451 extending through an opening 144in the wall 2 of the machine. The lever 143 is adapted to engage in anotched plate 145 carried by the wall 2. and said lever is pivoted-tothe crank 142 so that it may be raised out of a notch of the plate 145and shifted to another notch of said plate. said lever and itsassociated parts constituting means: for determining the direction ofrotation of the shaft 1214 by power. also means for locking the clutchmember 139 against accidental shifting.

Meshing with the beveled gear wheels 137 and 138 is a horizontallydisposed beveled gear wheel 146 on the upper end of a vertical shaft 147journaled in the depending bearing 135, said bearing being somewhatU-shaped or in the form of a stirrup as shown by dotted lines in Fig. 2.On the lower end ofthe vertical shaft 147 is a beveled gear wheel 148meshigng with a beveled gear wheel 1119 on a transverse shaft 150journaled in the bearing-134').l On one --`end of the shaft 1'50 is aworm gear 151 meshing with a rworm 152 on vthe lower end of a vert-icalshaft 153 that vertically' alines with the shaft 101, as shown in Fig.10.' The shaft' 153 is journaled in suitable bearings carried by thebearing 135 and the upper end of said shaft has a worm'gear154 meshf ingwith a Worm 155 on a transverseV vari-` able speed shaft 156 journaledin bearings of the frame 128. The variable speed'shaft- 156 is providedwith speed gears 157 similar to the gears 110 and adaptedr to engageeither of the speed gears 157 is a shiftable gear 158 forming a part ofthe gear shifting mechanism which has been generally designated '159,said mechanism being identical 'in/ .constructon with the mechanismpreviously described as including the elements '111 to 120 inclusive.The gear wheel 158 is adapted to be driven by a Worm gear 160 formingpart of the mechanism 159 andV meshing with the worm 29 on the auxiliaryvertical shaft 26. v y

From the foregoing, it will be observed' that the power of the verticalshaft 26 canbe transmitted to the rack\sleeve '129 for reciprocatingsaid sleeve and the horlzontal spindle 122 by power, in anydirection ascontrolled by the clutch member 130, and at any desired speed in eitherdirection as controlled by the variable speed mechanism 159. Associatedwith the horizontal spindle is an arbor support, best shown in Figs.lfand 2, comprising an arm 161 projectingfrom the front Wall 11 of themachine. Adjust,-4 able on the arm 161 is an arbor support 162 and thissupport may coperate with the spindle 122 in supporting a cutter orother tool so as to be driven by the-hdrizontal spindle.

Universal table, (Figs. 1,1257, 9, 11 and 12.)

The shears 7 on the :fron-t wall 4 of the. pedestal section of themachine are doveV tailed,-similarvto the-shears 14, and slidable on theshears 7 and adaptedto be raised and lowered' hisa hollow table body orknee 163 having the bottom thereof provided with an opening 164 toreceive a ost 165, carried by the base 1 of the machine. Adjustable inthe post 165 is a screw 167 having the upper end thereof engaging a'bracket 168l 1n the hollow table body or knee163. On the up- 'The clutchmember 177 is employed for esgear wheel 169 meshing with a similar wheel170 fixed on a clutch sleeve 171 journaled in a bracket 172 within thetable body or knee 163. Another bracket-- 173, within the table body163l coperates with the rear `wall 174 of the table body in supporting`a shaft 175 that extends into the clutch sleeve 171. The shaft 175 hasa loose gear wheel 176 rovided with a clutch portion and slidab y keyedon the shaft 175 and adapted for rotation therewith 'is a clutch member177 adapted for interlocking engagement either with a clutch sleeve 171or clutch portion of the gear wheel 176.

tablishing rotative continuity between the shaft 175 andtheggear wheel176 -or between said shaft :and the clutch sleeve 171carrying thebeveled gearzwheel 170. A fork or crank 178'engages the elutehzmember177 for shifting said clutch member," said crank or fork being carriedby a transverse rock shaft 179 that extends out o'ff the side wall ofthe table body or knee 163. A lever 180 on the outer` end of therockshaft 179 permits of the clutch member 177 being shifted, and saidlever may be set in a desired position to hold the clutch member againstaccidental movement. y

The shaft 175 has a beveled gear wheel 181 on the rear end thereof, saidbeveled gear wheel meshing with the horizontal beveled gear wheel .182adapted to'rotate with a vertically disposed shaft 183 and also adaptedfor longitudinal movement on said shaft when the table or knee'is raisedor lowered. y The horizontal beveled gear' wheel 182 is supportedrelatively to the beveled gear Wheel 181 by a bracket 184 projectinginto the pedestal section of themachine and carried by the rear wall 174of the tableor knee. i

The shaft 183 has the lower end thereo journaled in a bracket 185forming part-of the base"l 1 of the machine, and the upper end of saidshaft extends .into a bearing 186 protruding forwardly in the bearing135. On the upper end of the shaft-183 is a horizontally disposed gearwheel 187 adapted to -be engaged by one or the other of meshing gearwheels 188 in a gear casing 189, whlc vis suitably 'supported from `thebearing` 135 and has a-crank portion 190that permits of 4thegear-"casing being laterally shifted so machine andprovided with a crank194 lthat `125 may be set, relatively to the wall 2, to hold/ the gearcasing 189 1n a lshifted position.

The gear casing 189 has for its pivot the vertical shaft 153 and mountedon said shaft within the gear casing and meshing with the large gear 158is another large gear wheel 195.

In consequence of this arrangement, the vertical shaft 153, which may beoperated at various speeds, is adapted for in'iparting movement to thevertical shaft 183 and by interposing the gear casing 189 between theshafts 153 and 183, it is possible to reverse the direction of rotationof the shaft 183 at any time relative to the direction of rotation Sincepower 1s transmit` In order that the table or knee 163 mavv be manually1raised and lowered. the side of :the table or knee is )rovidedwith abearin 196 for an angularly disposed shaft 197, Said shaft having the.outer end thereof provided with a hand wheel 198, and `the inner endthereof with a beveled gear wheel 199 meshing with the beveled gearwheel 169 of the screw 167. Since the shaft 197 is carried by thetableor knee, said shaft may be rotated to impart a similar movement tothe screw 167 and thus permit of the table or knee being manually raisedor lowered.

The top of the table or knee 163 is provided with a longitudinal tongue,200 and slidable onvsaid table or knee is a table top 201 having agroove to receive the tongue 200 of said table. On the table top 201 1sa .rotatable support 202 adapted to be manually adjusted relative to thetable top 201 and fixed in an adjusted position by suitable hold fastdevices 203. These devices may be in the form of bolts and nuts with theheads of thebolts so, disposed in an annular space 204 the heads thereofwill clamp the rotatabley su )port relative to the table top.

fhe rotatable support 202 has the top thereof formed with a dove-tailedgroove to receive avisimilarly formed tongue 205 of a reciprocable workholder 206, said work holder having the usual longitudinal or transverse|ways so that a piece of 'work may be clamped thereon. The work holder206 may be reciprocated by power or hand and for this purpose, thesupport 202 has bearings 207 extendingr upwardly into the work holder.Journaled in the bearings 207 of the rotatable support 202 is valongitudinal rotatable nut 208 held against longitudinal movement byheads or washers 209 on the ends of the nut. Extending through the nut208 is a longitudinal screw 210 held for rotation in the ends of thework holder and against longitudinal movement relatively thereto. Eache'nd of the screw 2 10 is shaped and adapted to accon'nnodate a handwheel 211 by which the work holder may be manually reciprocated.

Loose on the nut 208, between the bearings 207, are beveled gear nvheelsand either of these beveled gear wheels may be engaged by a clutchmember 213 slidably keyed on the nut 208 and adapted for rotationtherewith. The clutch member 213 may be shifted through the medium of afork, rock shaft and crank, generally denoted 214 and operatable at theside of the rotatable support 202.

Meshing with the beveled gear wheels 212 is a horizontal beveled gear4wheel 215 mounted on the upper end of a' shaft 216 journaled in thetable top 201. The lower end of the shaft 216 has a beveled gear wheel217 meshing with a silnilar vwheel 218 on a sleeve. 220, journaled in a,depending bearing 219 of the table top 201. The sleeve 220 is heldagainst longitudinal movement., and extending through said sleeve is alongitudinal shaft 221 that has the inner end thereof journaled in thebracket 173 of the table or knee 163. The shaft 221 has a longitudinalkey wvay '222 for a key or spline carried by the beveled gear wheel218=of the sleeve 220, so that when movement is imparted to the shaft221, the beveled gear wheels 218 and 217 may, through the medium of theshaft 216, and the beveled gear wheel 215, impart movement to one of thebeveled gear wheels 212.

The shaft 221 has a gear wheel 223 meshing with the gear wheel 1764andwhen the clutch member 177 establishes a driving relation betweenthe gear wvheel 176 and the shaft 175, powa`- may be employed forreciprocating the i ork holder 206.

As the shaft 221 does not interfere with the longitudinal movement ofthe table top 201, said table top may be manually shifted on the tableor knee 163 and this is accomplished in the following manner. The tabletop 201 has a depending nut 224 in screwthreaded engagement with alongitudinal screw carried by the table or knee 163, said screw havingthe outer end thereof provided with a hand wheel 226. By rotating thishand wheel the table top may be moved back and forth on the table orknee.

Again considering the rotatable support 202, said support has aplurality of apertured lugs 202"y adapted to receive a pin 203 in aguide 201 on the table top 201.

The pin 203"L may be raised and lowered4 by a suitable pivoted lever 205at the side of the table and in this manner the support 202 held againstrotation.

From the foregoing, it will be observed `perfect control of the machine.

-that the universal table with its numerous Vii-niversal table, it ispossible to regulate the speed of the spindles relativelv to the :pieceof work and reverse the direction of travel ot' the spindle'at any time.By virtue o fl Athe main change speed gear mechanism, the operation ofthe entire machine may be for a predetermined speed and the two variablespeed mechanisms contribute to a As the transmission ot' powei; lia-sbeen '.ct'insidered in detail in connection with tlie"piincipaloperatable elements of. the" machine, it is thought unnecessary toconsider a general operation or further point out how pieces of work maybe operated upon.

'hat I claim is 1. In a boring,` machine, the combination of a inainframe, a universal table' capable of vertical. rotary and lateraladjustment, power means for vertically and laterally adjusting saidtable, a universal head carried by said frame and capable of verticaland angular adjustment, means including a screw shaft and unit in saidmain-frame adapted for vertically adjusting said head, and areciprocable and rotary sipndle, carried by said head and adapted to beoperated by said power means.

2. In a boring machine, the combination of a main frame, a table, ahead'carried by said mainframe, power means Vvadapted for adjusting saidtable and said head, a horizontal spindle carried by said main frame, avertical spindlef carried by said head, both of'lsaid spindlesbeingcapableof reciprocatory and rotaryrinovement, and means utilizing. saidpower niean'sizulapted for operating either of said spindles.

3. In a boring machine, the combination lof a main frame, a table,ahead. power means for adjusting!v said table and said head relativelyto said main frame, a spindle carried by said head, a spindle carried bysaid frame, both of said spindles being capable of reciprocatory androtary movement, means adapted for utilizing said power means so thateither spindle may be operated, andvmeans adapted for reversing thereciprocatory or rotary movement of either spindle.

4. In a boring machine. the combination of a main frame, a universaltable at the base thereof capable ofevertical, rotary and lateraladjustnie-iit.' a driven main "shaft in said frame, al change speed gearmechanism adaptedv fr regulating the speed of said driven shaft, meansfor transmitting power from said shaft to said table so that said tablemay be 'vertically and laterally adjusted by power,^auniversalhead jcarried by said frame and capable of vertical and angular adjustment,ineans adapted for vertically adjusting said head, a spindlecarried by said head having alreciprocable and rotary move` mentfandadapted to be'operated fronisaid shaft, Y-and.; nie'a'ns' adapted forreversing either movement 'of said spindle.

5.111 a"-boiing.,ina-chine, a base, a inain frame AcarriedV vtherebyand.- provided with operatableffspindles, a driven shaft' inv said mainframe,=-ine ans in :said in'ain franic for controlling'the'direction'of'rotation of said shaft, a knee .adjustable relative to said main frame,a shaft in saidknee driven from the shaft insai'd main fi'aiiieirrespective ot' the position .Of said knee. means operated .by theshaft within said kneeadapted for raising and lowering said 'kneerelative to said base, and a work holder on saidkiiee.

6. In ti-.boringv machine, the. combination with a main f 'amevhaving-operatable spindles, and means iii said main iframe adapted foroperating said spindles, ot' a.,2 knee adjustable relative to said mainfra-me. a shaft in said knee movable therewith and adapted to have.movement imparted thereto irre..

spective of the position of said knee from the spindle operating meanswithin said main frame, a screw supported by said main frame andope-rated by said shaft adapted for raising and lowering said knee, areciprocable table top on said knee, a rotatable support on said tabletop, and a re'cipi-ocable work holder carried by said support.

'l'. In a boring machine. the combination with a main frame havingoperatable spindles and means in Said traine adapted for operating saidspindles. otl a knee adjustable relative to said main frame, a shaftv insaid knee movable. therewith and adapted to be operated irrespectiveotthe position of said knee by the spindle operatiingY means in saidmain frame. a screw' supported by said main frame and adapted to heoperated by said shaft to raise and lower said knee, means adapted foroperating r said screw independent of said shaft operatingr means, ai'eciprocable table top on said knee. manual means adapted for adjustingr said tableI top, a rotatable support on said table top andadapted to be manually adjusted. and a reciprocal work holder on saidsupport adapted to be operated hy said shaft and by hand.

8. In a boring machine.l the combination with a main frame having auniversal table,

ioo

a horizontal spindle, and operating means for said spindle, of auniversal head carried by said mail frame and comprising a plate in theupper end of said main frame, manual means within said main frameadapted for raising and lowering said plate, a housing having a faceplate rotatable on the first mentioned plate and adapted to be fixedrelative thereto, a rotary and reciprocable spindle supported by saidhousing, and means extendingwvithin said main frame into, saidhousingadapted for imparting either a reeiprocable or rotary movement tosaid spmdle.

S). In a boringr machine, the combination lwith a main frame having auniversal table,

a horizontal spindle, and operating means in said main frame for saidhorizontal spin dle, of a universal head at the upper end of said mainframe, comprising a housing having vertical and angular adjustmentrelative to said main frame, a rotary and; reciprocable spindle carriedb v said housingl` means in said housing extending into said main frameto be operated by operating lneans therein for imparting a rotarymovement to said spindle, means in said housing operated by the samemeans within said main frame adapted for reciprocating said spindle andmeans in said housing controlling the direction of rotation andreciprocation of said spindle.

10. In a boring machine, the combination with a lnain frame, anauxiliary driven shaft therein, and a screw shaft operated indirectlyfrom said auxiliary shaft, of a universallumd carried by said main framecapable of vertical and angular adjustment. a rotary and reciprocablespindle carried b v said head, means` in said head extendino into saidmain frame and actuated by said5auxiliary shaft adapted for imparting arotary movement to said spindle, means inv said housing adapted forcontrolling the directionwof rotation of said spindle, means in/saidhousing extending into said main frame and operated by said screwshaft and adapted for,reciprocating said spindle, and means in saidhousing adapted for controlling the 'direction ot' reciprocation of saidspindle.

In testimony whereof I aihx my signature in the presence of twowitnesses.

RAYMOND H. HILL. 'itnesses:

KARL H. BUTLER, ANNA M. Donk.

